$b^1{\Sigma }_g^{+}–X^3{\Sigma }_g^{-}$ (0,0) band of oxygen isotopomers in relation to tests of the symmetrization postulate in ${}^{16}{\mathrm{O}}_2$

We investigated the $b^1{\Sigma }_g^{+}–X^3{\Sigma }_g^{-}$ (0,0) band of the ${}^{16}{\mathrm{O}}^{18}\mathrm{O},$ ${}^{16}{\mathrm{O}}^{17}\mathrm{O},$ ${}^{18}{\mathrm{O}}_2,$ ${}^{17}{\mathrm{O}}^{18}\mathrm{O},$ and ${}^{17}{\mathrm{O}}_2$ isotopomers of oxygen. The weak magnetic dipole transitions around 760 nm were observed using cavity-ring-down absorption spectroscopy. The positions of over 340 lines are presented together with (re-) analyses of the rotational constants. We discuss the importance of these data in view of tests of the symmetrization postulate in ${}^{16}{\mathrm{O}}_2$ and present a sensitivity scale of 13 orders of magnitude that could be practical for future test experiments.